Hubbing-machine



4 Sheets-S heet 1.

N A G I T R A H R W M M m HUBBING MACHINE. Y Patented May '5,"1885.'

WITNESSES n PETERS. Pmvuihan ha. W uc (No Model.) 4 Sheets-*Sheet 2.

w. R. HARTIGAN. HUBBING MACHINE. No. 317,131. Patented May 55111885.

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(NoModL) W. R. HARTIGAN.

' 1111131311111 MACHINE.

Patented May 5, 1885.

' WITNESSES r m/mvmp N. PETERS, PhawLilhog-mpher. Wanhingmn. a. a

(No Model.) m {Sheets-Sheet W. 'R. HARTIGAN.

' HUBBING MACHINE. No. 317,131.

Patented May 5, 1 885.

M w i v g I UNITED STATES PATENT OFFICE.

WILLIAM R. HARTIGAN, OF COLLINSVILLE, CONNECTICUT.

HUBBlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 317,131, dated May 5,1885.

Application filed October 22, 1884. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLIAM R. HARTIGAN,

v of Collinsville, in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements in Hubbing- Machines;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to an improvement in hubbing-machines, the objectof the same being to provide a machine which shall simultaneously formthe annular grooves in the opposite sides of a skate-roller or otherwheel, by which a hub is formed, a further object being to provideimproved means for feeding,

- clamping, and discharging the blanks, a fur ther object being toprovide an effective, durable, and compact machine. With these ends inview, myinvention consists in certain features of construction andcombinations of parts, as will be hereinafter described, and pointed outin the claims.

In the accompanying drawings, Figure 1 is a top plan view of themachine. Fig. 2 is an end elevation. Fig. 3 is a vertical longitudinalsection through the line 00 y of Fig; 1. Fig. 4 is a vertical transversesection through the line 00 7/ of Fig. 1, and Fig. 5 is a detached viewof the feed-discharge and clamping mechanism.

A represents the bed of the machine, supported upon suitable legs, a,connected by the end girders, a. The rear side of the bed A is providedwith the upwardly-extendin g lugs or arms B, one at each end, providedwith suitable bearings, 11, in which the feed driving shaft 0 isjournaled. One end of the bed A is provided with the upwardly-extendingarms D, having suitable bearings, d, in which the cross-shaft c isjournaled. The end of shaft C is provided with a beveled gear-wheel, E,rigidly secured thereon, which engages a beveled gear-wheel, e, rigidlysecured on the end of shaft 0. Two pairs of upwardly-extending ears orlugs, F and F, are firmly secured to the bed A, and provided withsuitable bearings, in which the sleeves f and f are journaled in thesame horizontal line.

Within the sleeves f and f the spindles G and G fit and have a slidingmotion, and are caused to rotate with the sleeves by a feather andgroove or equivalent device. The inner ends of the spindles G andG areprovided with sockets, in which the stems of the cutters g g arereceived and held. The cuttersg g are provided with centering-teats gg,respectively.

The roller-blanks, which are firstbored,are

- fed to, held :between, and discharged from the cutters by mechanismoperated by a camon the shaft C, and the spindles are advanced intocontact with the blanks by mechanism driven by cams on the shaft 0, allof which will be explained in detail in the order above stated.

A carriage or movable dog, H, is constructed to slide transversely on abed, I I, the latter being secured firmly to the bed A, transverselythereon, below and midway between the cutters g g. The rear end ofHiscut away, as shown, the lower portion, 71, extending rearwardly, andforming a rest for one of the blanks z. The dog H is guided in itstransverse motion by a groove, i, in the face of the bedI, and is heldagainst an upward displacement by a strap, h, secured to thebed I oneither side. The dog H is inolosed by two side plates, If, extendingfrom the rear end of the bed I forwardly to the strap h,the two platesbeing bolted firmly together and provided with an upper plate, h,forming a cover as far forward as the feed-channel J. A stationary dog,71., against which the blanks are fed by the movable dog H, is firmlysecured between the sides h at a point a short distance to one side ofthe cutters, and is pro vided with an oblong slot, 7v, near its rearend, through which a set-screw, h, passes into the bed I, and therebyholds the dog h* and the box formed by the plates If and h in thedesired adjustment on the bed I. The side plates, h are cut away at h",to admit the cutters, and are provided with the oblong open slots it toadmit screws or studs h, set in the sides of the dog H,whereby theforward ends of the plates are held more firmly in position on the bedI. The rearwardly-extending portion h of the dog H is provided with avertical open slot, i, through which the upturned end of a flat spring,'5 projects when the dog is in its adjustmentiarthest from-the cutters.The spring 2' is secured-in a recess in the face of the bed I, andserves to prevent the blank, when it drops from the feed-channel ontothe rest h, from rolling forwardly and dropping down through thedischarge-channel i in the bed I. As'the dog H moves toward the cuttersthe spring is depressed into its recess, and when the dog returns, afterthe'wheel has been hubbed,tl1e spring rises through the slot 2" androlls the wheel rearwardly to the discharge The bed I is formed of twowedge-shaped sections, the upper section, 1, being adjustably secured onthe lower section by means of the set-screw h, passingthrough the oblongvertical slots 7L5 and into the rigid lower section, by which adjustmentthe dogs are elevated or depressed to suit blanks of differentdiameters.

The feed channel or hopper J is secured to the bed I by means ofbranches j, which extend downwardly on either side of the plates If. Therest h on the dog II, when the dog is at its farthest point from thecutter, is located beneath the lower end of J in aposition to receiveablank therefrom, and as the dog advances it closes the feed, thuscarrying one blank at a time between the cutters, and on its returndischarging the one and receiving the next preceding.

The dog II is reeiprocated as follows: A wheel, K, rigidly mounted onthe shaft 0, is provided with a cam-groove, k, 011 its face. A lever, k,is pivotall y secured to a rearwardly-extending arm, 7.; on one side ofthe machine, the upper on d of the saidleverbeing pro vided with a stud,which engages the cam groove 75. A lever, 7c", is pivotally secured to aforwardly-extending arm, it on the opposite side of the machine, theupper end of 75* being pivotally attached to the end of the dog H.Thelower ends of the levers 7; and 70* are connected by a rod, k, belowthe bed A, said rod being adjustable in length, whereby the advance ofthe dog II is increased or diminished at pleasure.

The spindles G G,earrying the cutters, are reciprocated as follows: Twovibrating arms, L and L, situated at opposite ends of the machine, arepivotally secured at their lower ends between lugs Z Z, attached to thecrossgirders a. The upper ends of L and L are provided with curvedbranches Z which extend somewhat more than half-way around the outerends of the spindles, each pair of branches being provided withinwardly-extending adjustable studs Z, adapted to extend and loosely fitwithin annular grooves Z on the ends of the spindles at points diametri=cally opposite, thus allowing the spindles to revolve freely between thesaid studs, and at the same time affording a secure hold on saidspindles for moving them longitudinally and holdingtheminlongitudinaladjustment. Two upright levers, M M, located at one endof the machine,are pivotally secured to arms m,

the upper ends ofthe levers being adapted to engage the faces of thecam-wheels N N, rigidly secured on the shaft 0, and their lower endsconnected with the arms L L. The lower end of lever M is connecteddirectly with the arm L by the adjustable connecting-rod O. The lowerend of lever M is indirectly connected with the arm L by means of anintermediate lever, P, pivoted to a depending support, 1), the lower endof P being connected with the lower end of M by an adjustable rod, 0,and the upper end of 1? connected with the arm L by a rod, 0. By theabove construction the two arms L and L, and hence the cutters, are

caused to simultaneously approach each other when the levers M M aresimultaneously on erated by the cams N N.

The cutters are caused to recede from each other as fast as the arms N Nwill allow by means of springs Q, attached, respectively, to theconnecting-rod O and the lower end of lever P, and to studs q, set inthe bed A. The adjustable rods 0 and 0 enable the operator to determinethe advance of the cutters t0- ward each other, and'hence the depth ofgroove cut on each side of the blank. 7

A spout, It, is secured to the under side of the bed A to guide thehubbed wheel into a suitable receptacle.

Theshaft O and each of the spindle-sleeves f and f are provided withband-pulleys S, and are driven by suitable pulleys on a counter-shaft oron counter-shafts. (Not shown.) The sleeves f and f are driven inopposite directions, whereby the rotary pressure on the blank caused bythe cutters engaging therewith is equalized, and the stationary andmovable dogs 'are'relieved from strain, and enabled to hold the blanksecurely with a comparatively light pressure.

The operation of the machine as a whole is as follows: The spindlescarrying the cutterheads are rapidly revolved by suitabledriving-pulleys. The revolving shaft 0, driven at a suitable speed,advances the dog H with a blank and holds the blank between the cutters,while the revolving shaft 0, driven by O, advances the cutters intoengagement with the blank and releases them therefrom, at which momentthe cam on G returns the dog Hfor a new blank.

The centering-teats 5 serve tolsteady the blanks while being operatedupon by the cutting-edges, and prevent any possibility of a wabblingmovement and an irregular groove.

It will be observed that the machine constructed as above described issubstantial and compact, and does its work rapidly and correctly, thelabor of the operator consisting in keeping a supply of blanks in thehopper and room for the hubbed wheels in the receptacle.

It is evident that slight changes may be made in the form andarrangement of the several parts without departing from the spirit andscope of my invention hence I do not wish to limit myself strictly tothe construction herein set forth; but,

IIO

Having fully described my invention, .what I claim as new, and desire tosecure byLetters Patent, is-

1. In a hubbing-machine, the combination, with two rotary cutterslocated in the same plane and opposite each other, and provided withcentering-teats, and levers and connecting mechanism for simultaneouslyreciprocating tions, of the movable dog and a spring located below andoperated by the movable dog, whereby the blank is retained on the dog,advanced between the cutters, and ejected from the dog, substantially asset forth.

3. In a hubbing-machine, the combination,

1 with two reciprocating rotary cutters located in the same plane andopposite each other, of a stationary dog located on a line passingbetween and at right angles to the cutters, and a ,1 movable dogoperating in conjunction with the stationary dog, whereby the blank isadvanced and clamped between the cutters, substantially as set forth.

4. In a hubbing-machine, the combination,

with two reciprocatingrotary cutters located in the same plane andopposite each other, of

an adjustable stationary dog, and a reciprocating dog located on a linepassing between and at right angles to said cutters, a spring operatedby the reciprocating dog, and an adjustable dog-support, whereby blanksof different sizes are automatically fed to the cutters, clamped, anddischarged, substantially as set forth.

5. In a hubbing-machine, the combination,

with two reciprocating cutters located in the.

same plane and revolving in opposite directions, of a combinedreciprocating dog located on aline passing betweenand at right angles tothe cutters and carriage, and a stationary dog operating in conjunctionwith the movable dog and carriage, whereby the blanks are fed betweenthe cutters and clamped ,while being operated upon by the cutters,substantially as set forth.

6. I11 a hubbing-machine, the combination, with two reciprocating rotarycutters, a stationary dog, and a movable dog adapted to serve as acarriage, of a dog-supporting bed, consisting of a stationary lowersection having an inclined face and an adjustable upper section havingan inclined face, whereby the dogs are elevated or depressed to suitdifferent-Si zed wheels,,substantially as set forth.

7. In a hubbingmachine, the combination, with a pair of rotary cutterslocated in thesame plane and opposite each other, and means for feedingawheel between said cutters, of a shaft, a pairof rotary cams mounted onsaid shaft, and levers and pitman connecting the cams andcutter-spindles, whereby the cutters are simultaneously advanced towardthe wheel, substantially as set. forth.

8. In a hubbing-machine, the combination, with the rotary cutters,vibrating arms located at opposite ends of the machine-frame in looseengagement withthe ends of-the cutter-spindles, and levers located atone end of the machine and operated by a pair of rotary camwheels, ofrods connecting the vibrating arms and the levers, said .rods beingadjustable in length, whereby the cutters are reciprocated and thelength of stroke determined, substanwitnesses.

WM. R. HARTIGAN.

Witnesses:

7M. A. \VADswoRTH, GEORGE E. TAFT.

